freerice.com

I discovered an interesting and helpful website called freerice.com. It has various quizzes about countries, art, foreign language and vocabulary. Each question offers 4 choices so it is not terribly difficult!
The neat thing is with every right question you answer, 10 grains of rice are donated to the World Food Program. In the first 5 months of the program enough rice was donated to feed about 1 million people!

I'm not sure how it all works exactly... The website was started by an Indiana computer programmer named John Breen. It is fun, addictive (in a good way), and beneficial to others. So enjoy!